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Luda [366]
3 years ago
12

How long ago did water form on earth

Biology
1 answer:
slega [8]3 years ago
5 0

4.6 billion years ago

The study pushes back the clock on the origin of Earth's water by hundreds of millions of years, to around 4.6 billion years ago, when all the worlds of the inner solar system were still forming. Scientists had suspected that our planet formed dry, with high-energy impacts creating a molten surface on the infant Earth.

i hope this helped, have a nice day! (o:

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Nutrients in the deep ocean come from dead marine organisms. <br>True<br>False​
Viktor [21]

Answer:

True

Explanation:

The deep parts of an ocean receive minimal or no sunlight. Hence, the survival of phototropic organisms like plants and algae is impossible or minimal here. Hence, there is a very little diversity in deep oceans. The organisms living here have to feed on dead decaying matter or on each other for survival. Mostly, the organisms living here use dead organisms as food. No other food source is available here.

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3 years ago
A hypothetical bacterium swims among human intestinal contents until it finds a suitable location on the intestinal lining. it a
ivann1987 [24]

The bacterium is not susceptible to the penicillin family of antibiotics. it contains no plasmids and relatively little peptidoglycan. Adherence to the intestinal lining by this bacterium is due to its possession of a capsule.

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The beaches with the strongest sunlight at christmas can be found in
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They can be found in australia!
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Which membrane is highly convoluted?
Ray Of Light [21]
The correct option is B.
Mitochondria is one of the membrane bound organelles that is found in living cells. It is called the power house of the cell because it is responsible for providing energy for the life sustaining activities of the cells. Mitochondria possesses an outer membrane  and a highly convoluted inner membranes.The convoluted portion of the mitochondria provides a large surface area for the occurrence of biochemical reactions<span />
3 0
3 years ago
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Smiling is a universal sign of happiness in all cultures. T/F
Zarrin [17]

Answer:

True

Explanation:

Smiling is considered as a universal sign of happiness. Smiling is something that makes a person happy internally. During birth babies smile. Some people smile even during sleep. It has been observed that when people are exposed to something they love or enjoy, they usually smile such as song, music, old photographs etc. Smiling is not a learned behaviour , it is considered as a sign of pleasure and openness across various cultures.  

Hence, the given statement is true

4 0
2 years ago
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